您可以購買方案，或者如果您想要在沒有訂閱的情況下使用行動裝置 App，請點選 [稍後 再點選]。 請注意，如果您使用 Microsoft 365 訂閱，就可以存取 進階版功能 。 步驟 3：

摘要 本文解釋了為什麼 Microsoft 的驗證碼不一定能送達。 其中包含最常見的原因清單，以及每種原因的解決方案。 Microsoft 致力於推動安全標準，因此我們將開始逐步淘汰 SMS 作為個人 Microsoft 帳號驗證與帳號恢復的方法。 驗證碼不一定能及時送達的原因 請閱讀以下最常見的原因清單，看看是否有 ...

Open the app, go to the app's top-level menu, and then select Send feedback. After that, contact Support or go to the Microsoft Authenticator app forum and explain the problem you're seeing and the steps you tried.

The default authentication method is to use the free Microsoft Authenticator app. If you have it installed on your mobile device, select Next and follow the prompts to add this account.

The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.

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Learn how to sign in and create app passwords for Microsoft apps and devices that don't support two-step verification.

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

Microsoft 支援服務在此協助您處理 Microsoft 產品。 尋找適用於 Microsoft Copilot、Microsoft 365、Windows 11、Surface 等的使用方法文章、影片和訓練。

If you turn on two-step verification, you'll get a security code to your email, phone, or authenticator app every time you sign in on a device that isn't trusted.